Geothermal Plastic Piping Systems Certification
Most U.S. state and Canadian province drinking water regulations require pipes and fittings conveying drinking water to meet the requirements of NSF/ANSI/CAN 61 to ensure components will not contribute harmful levels of contaminants to the drinking water.
What is NSF/ANSI/CAN 61?
NSF/ANSI/CAN 61: Drinking Water System Components -Health Effects is the American National Standard and the Canadian National Standard that establishes the health effects requirements for chemical contaminants and impurities that are indirectly imparted to drinking water from products, components, and materials used in drinking water systems.
How do I know if HDPE pipes or fittings meet this NSF requirement?
HDPE pipes or fittings certified by NSF will bear either the NSF®-61 mark or the NSF® pw (potable water) mark on the print string. The NSF® pw mark indicates the product meets the health requirements of NSF/ANSI/CAN 61 as well as performance, long-term strength, and quality control requirements in NSF/ANSI 14: Plastic Piping Components and Related Materials.
Learn more about our materials and ingredients services
Verify the compliance of materials and ingredients with both North American and international standards.
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NSF Drives Industry Conversations at SupplySide Global 2026 - Las Vegas, Oct. 26–30
September 17, 2026NSF returns to SupplySide Global with expert-led training and trusted certification solutions. Visit Booth 4741 to discover how NSF and Cambium Analytica help brands build trust, increase consumer confidence and stand out in a competitive marketplace.
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NSF to Exhibit and Present at PACK EXPO International
September 11, 2026NSF is proud to be part of PACK EXPO International 2026, the premier event bringing together packaging and processing leaders from across industries.